Features: *【Accurate Temperature Readings】Our high-precision temperature sensor can read from 14.2℉ to 122℉ for air and -40℉ to 158℉ for pools, with a switch for ℃/℉. *【Easy to Use】Simply place the thermometer directly into the water and wait 1-2 minutes to read the pool degree on the LCD display. *【High Precision Sensor】Our digital pool thermometer is accurate to ±1.8℉, with data updated every 60 seconds and a transmission distance of up to 60m. *【Waterproof Design】Featuring an advanced IP67 with a double-sealed waterproof cover, our pool temperature thermometer is designed to withstand even the harshest conditions. * The real-time temperature of the water where the sensor is located and the real-time temperature of the room where the host is located can be displayed on the same screen. Support the record of maximum temperature and minimum temperature of the day. Specifications： *Time display: 12/24H optional *Indoor and outdoor temperature display: ℃/℉ optional. *Indoor host temperature detection range: -9.9°C~+50°C (14.2°F~122°F). *Pool sensor temperature detection range: -40°C~+70°C (-40°F~158°F). *The temperature error is within ±1℃, and the transmission distance is 60 meters. *Power supply: Indoor host: 2x1.5V “AAA” alkaline batteries (not included) Outdoor Sensor: 2x1.5V "AAA" Alkaline Batteries (Not Included) *Packing size: 14.5*9.5*9.5 cm *Package weight: 290g *Color: white+gray Package Contents: 1*host 1*Swimming pool temperature outdoor unit 1*Instruction manual Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.